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Also known as: 126-30-7, 2,2-dimethylpropane-1,3-diol, 2,2-dimethyl-1,3-propanediol, Dimethylolpropane, 1,3-propanediol, 2,2-dimethyl-, Neopentanediol
Molecular Formula
C5H12O2
Molecular Weight
104.15  g/mol
InChI Key
SLCVBVWXLSEKPL-UHFFFAOYSA-N
FDA UNII
QI80HXD6S5

CAS 126-30-7
1 2D Structure

CAS 126-30-7

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
2,2-dimethylpropane-1,3-diol
2.1.2 InChI
InChI=1S/C5H12O2/c1-5(2,3-6)4-7/h6-7H,3-4H2,1-2H3
2.1.3 InChI Key
SLCVBVWXLSEKPL-UHFFFAOYSA-N
2.2 Other Identifiers
2.2.1 UNII
QI80HXD6S5
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 2,2-dimethyl-1,3-propanediol

2.3.2 Depositor-Supplied Synonyms

1. 126-30-7

2. 2,2-dimethylpropane-1,3-diol

3. 2,2-dimethyl-1,3-propanediol

4. Dimethylolpropane

5. 1,3-propanediol, 2,2-dimethyl-

6. Neopentanediol

7. Neopentylene Glycol

8. Neopentylglycol

9. Neol

10. Dimethyltrimethylene Glycol

11. Hydroxypivalyl Alcohol

12. 2,2-dimethyltrimethylene Glycol

13. Nexcoat 600

14. 2,2-dimethyl-1,3 Propanediol

15. Qi80hxd6s5

16. Dtxsid8027036

17. Oristar Npg

18. Nsc-6366

19. 1,3-dihydroxy-2,2-dimethylpropane

20. Nsc-55836

21. Neopentylglycol Ecailles

22. Dtxcid007036

23. Chebi:143768

24. Dimethylol Propane

25. Refchem:165329

26. 204-781-0

27. Npg Glycol

28. Mfcd00004685

29. Nsc 55836

30. 2,2-dimethyl-1,3-propandiol

31. 2,3 Propanediol

32. Wln: Q1x1 & 1 & 1q

33. 77498-68-1

34. Cas-126-30-7

35. Ccris 3273

36. Einecs 204-781-0

37. Propanediol, 2,2-dimethyl-, 1,3-

38. Unii-qi80hxd6s5

39. Brn 0605291

40. 2,2-bis(hydroxymethyl)propane

41. Ai3-05739

42. Neopentyl Glycolnpg

43. 2,2-dimethylolpropane

44. Ec 204-781-0

45. Schembl19621

46. Cbdive_004836

47. 4-01-00-02551 (beilstein Handbook Reference)

48. Neopentyl Glycol [mi]

49. Schembl333642

50. 2,2-dimethylpropan-1,3-diol

51. Orb3023454

52. Schembl1032719

53. Schembl1099338

54. Schembl1436764

55. Schembl2226249

56. Schembl7969066

57. 2,2-dimethyl 1,3-propanediol

58. 2.2-dimethyl-1,3-propanediol

59. 2,3-dimethyl-1,3-propanediol

60. Chembl3184801

61. Hsdb 8424

62. 2,2-dimethyl -1,3-propanediol

63. 2,2-dimethyl-1,3-propane Diol

64. 2,2-dimethyl-propane-1,3-diol

65. Nsc6366

66. Msk14152

67. Nsc55836

68. 2,2-dihydroxy-2,2-dimethylpropane

69. 2,2-dimethyl-1,3-dihydroxypropane

70. Tox21_201363

71. Tox21_303298

72. Sbb056814

73. Akos005068060

74. Msk14152-100m

75. Cs-w011300

76. Fd54856

77. Msk14152-1000m

78. 2,2-dimethyl-1,3-propanediol, 99%

79. Ncgc00249034-01

80. Ncgc00256980-01

81. Ncgc00258915-01

82. As-13611

83. Dimethyl-1,3-propanediol, 2,2-

84. D0791

85. Ns00003307

86. St50982294

87. En300-30502

88. D71071

89. F235831

90. Q413855

91. F0001-0385

92. 2,2-dimethyl-1,3-propanediol Solution In Methanol, 1000ug/ml

93. 2,2-dimethyl-1,3-propanediol Solution In Methanol, 100ug/ml

94. Inchi=1/c5h12o2/c1-5(2,3-6)4-7/h6-7h,3-4h2,1-2h

2.4 Create Date
2005-03-26
3 Chemical and Physical Properties
Molecular Weight 104.15 g/mol
Molecular Formula C5H12O2
XLogP30
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count2
Exact Mass Da
Monoisotopic Mass Da
Topological Polar Surface Area40.5
Heavy Atom Count7
Formal Charge0
Complexity44
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Pharmacology and Biochemistry
4.1 Absorption, Distribution and Excretion

4 rabbits were gavaged with 1000 -1500 mg/kg bw unlabelled neopentyl glycol and excretion of the test substance and their metabolites via urine was determined the following 24 hr (pooled data). After oral application 62% (range 53-67%) of the applied dose was found in the 24-hr urine as the conjugate of glucuronic acid indicating rapid absorption. Only 1.9% of the applied dose was excreted as 3-hydroxy-2,2-dimethylpropionic acid and 0.7% as unchanged neopentyl glycol. Conclusion: Rapid absorption of the test substance after oral exposure followed by conjugation with glucuronic acid and excretion via urine.

ECHA; Registration for 2,2-dimethylpropane-1,3-diol (CAS 126-30-7); Available from, as of June 21, 2018: https://echa.europa.eu/registration-dossier/-/registered-dossier/15079


4.2 Metabolism/Metabolites

4 rabbits were gavaged with 1000 -1500 mg/kg bw unlabelled neopentyl glycol and excretion of the test substance and their metabolites via urine was determined the following 24 hr (pooled data). After oral application 62% (range 53-67%) of the applied dose was found in the 24-hr urine as the conjugate of glucuronic acid indicating rapid absorption. Only 1.9% of the applied dose was excreted as 3-hydroxy-2,2-dimethylpropionic acid and 0.7% as unchanged neopentyl glycol. Conclusion: Rapid absorption of the test substance after oral exposure followed by conjugation with glucuronic acid and excretion via urine.

ECHA; Registration for 2,2-dimethylpropane-1,3-diol (CAS 126-30-7); Available from, as of June 21, 2018: https://echa.europa.eu/registration-dossier/-/registered-dossier/15079


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